Fuel mix 53-54 Evinrude

Discussion in 'Bubba's Outboards' started by catfishcrazyjr, Jun 20, 2006.

  1. catfishcrazyjr

    catfishcrazyjr New Member

    Messages:
    301
    State:
    oklahoma
    i have a 53-54 rude 15hp(15012) what is the fuel mix and what is the best oil to use ?
     
  2. Bubbakat

    Bubbakat New Member

    Messages:
    4,532
    State:
    McMinnvill
    The mix is 24:1 Use any good TCW-3 oil with 87 octane or better fuel
    I use super tech from wal-mart myself and I have a 53 five h/p I run every once in awhile.
     

  3. My 54 model 25 Johnson says 1 quart to a six gallon tank.
     
  4. Bubbakat

    Bubbakat New Member

    Messages:
    4,532
    State:
    McMinnvill
    That would be right and would caculate out to 24:1
     
  5. catfishcrazyjr

    catfishcrazyjr New Member

    Messages:
    301
    State:
    oklahoma
    Thanx Alot Guys It Is My 1st Boat And Motor And Dont Know Much
     
  6. Ridge Runner

    Ridge Runner New Member

    Messages:
    4
    State:
    Arkansas
    For what it's worth, I think most outboards before about 1964 used bronze bearings rather then roller bearings. That's why the fuel/oil ratio is twice what many "modern" outboards call for.
     
  7. COB

    COB New Member

    Messages:
    22
    State:
    Huntsville, AL
    Did they even have TCW-3 oil in the 50's? My old memory seems to tell me that the 24:1 was based on 30W non detergent. Would the mix ratios be the same for TCW-3 oil?
     
  8. Iowa_Josh

    Iowa_Josh New Member

    Messages:
    1,463
    State:
    Central Iowa
    I think the collectors use 32:1 because of what you say.
     
  9. catseeman

    catseeman New Member

    Messages:
    1,189
    State:
    Indianapolis, Indiana
    MY 40hp calls for 50 to1 I had to go 100 to 1 . At 50 it fouled the plugs with the new oils.
     
  10. Bubbakat

    Bubbakat New Member

    Messages:
    4,532
    State:
    McMinnvill
    Charlie you still mix it at 24:1 with TCW-3 oil. Back in the fifties the oil was 30 weight and had some cotton seed oil in it and they just refined the oil and still mix it at 24:1.


    Now on the other post of a 100:1 you had better bring it back to 50:1 or you will toast that engine. You can switch to a little hottor plug and gap it at 40 and it should cure your fouling problem. I would also do a decarbon job on it and see if that ain't what is causeing the fouling. If those rings get coked up and foul a lot of plugs then she is headed for disaster.
     
  11. Bubbakat

    Bubbakat New Member

    Messages:
    4,532
    State:
    McMinnvill

    Lenorad what year is that 40?